Home / 21,069.10-31,605.27-6,276.88

Finding the Fourth Proportional to 21,069.10, 31,605.27 and 6,276.88

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Solution

The fourth proportional to 21,069.10, 31,605.27 and 6,276.88 is: 9,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.10 : 31,605.27 = 6,276.88 : x
  2. Step 2: Convert to fraction form
    21,069.10/31,605.27 = 6,276.88/x
  3. Step 3: Cross multiply
    21,069.10x = 31,605.27 × 6,276.88
  4. Step 4: Simplify right side
    21,069.10x = 198,382,487.16
  5. Step 5: Solve for x
    x = 198,382,487.16/21,069.10
  6. Step 6: Final answer
    x = 9,415.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.